Turn on the first for one min and then turn it off.+ H0 O) g7 i+ v. q0 |
Turn on the 2nd for five min and then turn it off. 5 T% h7 J' P" r" DTurn on the 3rd and leave it on. 1 W, c% k0 ?4 @And then go upstairs right away.3 ^- x0 j# J3 h) L. h; k9 O. [
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Find the answer by using your fingers and eyes ! V3 {3 Z; Y: s$ U这只是一个智力问题,不象是电工问题。
原帖由 老警察 于 2009-1-16 07:12 发表 o! r% K0 E2 @2 E* T( j4 {3 \& T* b) Y/ T
Turn on the first for one min and then turn it off. 0 O3 E% T+ ~6 g- GTurn on the 2nd for five min and then turn it off. % ~% k9 F: ?' O6 lTurn on the 3rd and leave it on.# m1 _ [ r2 T5 k# H; F$ i' ~7 j1 b
And then go upstairs right away.6 [ b' q; m9 n1 `8 {5 \+ S
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Find the answer by using ...